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3 years ago

5

Which is the completely factored form of 12x^3 – 60x2 + 4x – 20?

1 answer:

olya-2409 [2.1K]3 years ago

8 0

<span>4x(3x^2 + 1)(x – 5) glad to help!!!!</span>

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The sum of half of a number and 8 less<br> than the number is 25. Find the number.

LuckyWell [14K]

Answer:

The number is 22

Step-by-step explanation:

let x = the number

$\frac{1}{2} x + x - 8 = 25 \\ \frac{1}{2} x + x - 8 + 8 = 25 + 8 \\ \frac{1}{2} x + x = 33 \\ factor \: out\: x \: on \: the \: left \\ x( \frac{1}{2} + 1) = 33 \\ divide \: both \: sides \: by \: \frac{1}{2} + 1 \\ \frac{x( \frac{1}{2} + 1) }{ \frac{1}{2} + 1} = \frac{33}{ \frac{1}{2} + 1} \\ x = \frac{33}{ \frac{3}{2} } \\ x = \frac{66}{3} \\ x = 22$

let's factor out x from the left hand sid

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3 years ago

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miv72 [106K]

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Ann [662]

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3 years ago

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ololo11 [35]

Answer:

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Step-by-step explanation:

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I'm Sorry for all the work. I swear this is the last one! Please just help me in this last question.....

luda_lava [24]

Answer:

Step-by-step explanation:

y=mx+b where m=slope and b=y intercept

m=(y2-y1)/(x2-x1), we have points (0,0) and (4,12)

m=(12-0)/(4-0)=12/4=3

y=3x+b, using point (4,12) we can solve for b

12=3(4)+b

12=12+b

b=0 so the line is

y=3x

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3 years ago